• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
  • Campbell Ritchie
  • Ron McLeod
  • Rob Spoor
  • Tim Cooke
  • Junilu Lacar
  • Henry Wong
  • Liutauras Vilda
  • Jeanne Boyarsky
Saloon Keepers:
  • Jesse Silverman
  • Tim Holloway
  • Stephan van Hulst
  • Tim Moores
  • Carey Brown
  • Al Hobbs
  • Mikalai Zaikin
  • Piet Souris

Order of close() statements GZIP

Ranch Hand
Posts: 204
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

When i have the files nested this way, is there an order that the close statements should be in?

I keep getting a Corrupt GZIP trailer for some reason!

Thanks much!

GZIPInputStream in = null;
GZIPOutputStream gz = null;
PrintWriter outf = null;
byte[] buf=new byte[4096];

gz = new GZIPOutputStream(new FileOutputStream(xml_file));
outf = new PrintWriter (gz);
} catch ......

author and iconoclast
Posts: 24203
Mac OS X Eclipse IDE Chrome
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
The PrintWriter will line-buffer the output; the last line won't necessarily be sent along until you call flush() on the PrintWriter, or until you close it. So by closing the gzip stream first, you're actually closing it before all the data can be sent to it.

You actually only need to call close on the PrintWriter; it will call close on the gzip stream, which will in turn close the file stream, and everything will work fine.
You showed up just in time for the waffles! And this tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
    Bookmark Topic Watch Topic
  • New Topic